From Ruins to Resilience: How Developing and Utilizing Open Source Solutions Enhances CSIRT Capabilities --- ”Some cities have fallen into ruin and some are built upon ruins but others contain their own ruins while still growing.” Jeffrey Eugenides Introduction At CIRCL (Computer Incident Response Center Luxembourg), part of the Luxembourg House of Cybersecurity (LHC), we embarked on a journey to build and sustain open-source solutions for CSIRTs. With over 14 years of experience, we’ve...